drivers/staging/greybus/svc.h

   1 /*
   2  * Greybus SVC code
   3  *
   4  * Copyright 2015 Google Inc.
   5  * Copyright 2015 Linaro Ltd.
   6  *
   7  * Released under the GPLv2 only.
   8  */
   9
  10 #ifndef __SVC_H
  11 #define __SVC_H
  12
  13 #define GB_SVC_CPORT_FLAG_E2EFC         BIT(0)
  14 #define GB_SVC_CPORT_FLAG_CSD_N         BIT(1)
  15 #define GB_SVC_CPORT_FLAG_CSV_N         BIT(2)
  16
  17 enum gb_svc_state {
  18         GB_SVC_STATE_RESET,
  19         GB_SVC_STATE_PROTOCOL_VERSION,
  20         GB_SVC_STATE_SVC_HELLO,
  21 };
  22
  23 enum gb_svc_watchdog_bite {
  24         GB_SVC_WATCHDOG_BITE_RESET_UNIPRO = 0,
  25         GB_SVC_WATCHDOG_BITE_PANIC_KERNEL,
  26 };
  27
  28 struct gb_svc_watchdog;
  29
  30 struct svc_debugfs_pwrmon_rail {
  31         u8 id;
  32         struct gb_svc *svc;
  33 };
  34
  35 struct gb_svc {
  36         struct device           dev;
  37
  38         struct gb_host_device   *hd;
  39         struct gb_connection    *connection;
  40         enum gb_svc_state       state;
  41         struct ida              device_id_map;
  42         struct workqueue_struct *wq;
  43
  44         u16 endo_id;
  45         u8 ap_intf_id;
  46
  47         u8 protocol_major;
  48         u8 protocol_minor;
  49
  50         struct gb_svc_watchdog  *watchdog;
  51         enum gb_svc_watchdog_bite action;
  52
  53         struct dentry *debugfs_dentry;
  54         struct svc_debugfs_pwrmon_rail *pwrmon_rails;
  55 };
  56 #define to_gb_svc(d) container_of(d, struct gb_svc, dev)
  57
  58 struct gb_svc *gb_svc_create(struct gb_host_device *hd);
  59 int gb_svc_add(struct gb_svc *svc);
  60 void gb_svc_del(struct gb_svc *svc);
  61 void gb_svc_put(struct gb_svc *svc);
  62
  63 int gb_svc_pwrmon_intf_sample_get(struct gb_svc *svc, u8 intf_id,
  64                                   u8 measurement_type, u32 *value);
  65 int gb_svc_intf_device_id(struct gb_svc *svc, u8 intf_id, u8 device_id);
  66 int gb_svc_route_create(struct gb_svc *svc, u8 intf1_id, u8 dev1_id,
  67                                u8 intf2_id, u8 dev2_id);
  68 void gb_svc_route_destroy(struct gb_svc *svc, u8 intf1_id, u8 intf2_id);
  69 int gb_svc_connection_create(struct gb_svc *svc, u8 intf1_id, u16 cport1_id,
  70                              u8 intf2_id, u16 cport2_id, u8 cport_flags);
  71 void gb_svc_connection_destroy(struct gb_svc *svc, u8 intf1_id, u16 cport1_id,
  72                                u8 intf2_id, u16 cport2_id);
  73 int gb_svc_intf_eject(struct gb_svc *svc, u8 intf_id);
  74 int gb_svc_intf_vsys_set(struct gb_svc *svc, u8 intf_id, bool enable);
  75 int gb_svc_intf_refclk_set(struct gb_svc *svc, u8 intf_id, bool enable);
  76 int gb_svc_intf_unipro_set(struct gb_svc *svc, u8 intf_id, bool enable);
  77 int gb_svc_intf_activate(struct gb_svc *svc, u8 intf_id, u8 *intf_type);
  78 int gb_svc_intf_resume(struct gb_svc *svc, u8 intf_id);
  79
  80 int gb_svc_dme_peer_get(struct gb_svc *svc, u8 intf_id, u16 attr, u16 selector,
  81                         u32 *value);
  82 int gb_svc_dme_peer_set(struct gb_svc *svc, u8 intf_id, u16 attr, u16 selector,
  83                         u32 value);
  84 int gb_svc_intf_set_power_mode(struct gb_svc *svc, u8 intf_id, u8 hs_series,
  85                                u8 tx_mode, u8 tx_gear, u8 tx_nlanes,
  86                                u8 tx_amplitude, u8 tx_hs_equalizer,
  87                                u8 rx_mode, u8 rx_gear, u8 rx_nlanes,
  88                                u8 flags, u32 quirks,
  89                                struct gb_svc_l2_timer_cfg *local,
  90                                struct gb_svc_l2_timer_cfg *remote);
  91 int gb_svc_intf_set_power_mode_hibernate(struct gb_svc *svc, u8 intf_id);
  92 int gb_svc_ping(struct gb_svc *svc);
  93 int gb_svc_watchdog_create(struct gb_svc *svc);
  94 void gb_svc_watchdog_destroy(struct gb_svc *svc);
  95 bool gb_svc_watchdog_enabled(struct gb_svc *svc);
  96 int gb_svc_watchdog_enable(struct gb_svc *svc);
  97 int gb_svc_watchdog_disable(struct gb_svc *svc);
  98
  99 int gb_svc_protocol_init(void);
 100 void gb_svc_protocol_exit(void);
 101
 102 #endif /* __SVC_H */